composite control issue

Question

I created a composite control - called DateBox - that inherits from UserControl. It combines a DateTimePicker control (dateTimePicker1) together with a TextBox control (textBox1). In the designer, the textbox control is overlaid on the datetimepicker control so that you see the textBox and just the arrow of the datetimepicker. I can't get the following code to work, and I am not sure why:

void dateTimePicker1_ValueChanged(object sender, EventArgs e)
{
this.textBox1.Text = this.dateTimePicker1.Value.ToShortDateString();
}

Can anybody help me? Thanks,

Jan Montano · Answer

For the textbox's height it somehow follows the font size. You could change it if you set the Multiline property to True. For the datetimepicker's height however I don't know if it can be resized without changing the font size

Andy · Answer

Thanks Jan. I got it to work. I think the Value_Changed event must have become unlinked somehow. I am doing it this way so that I can also handle a user keying in six digits (e.g. 082907) in the textbox. Followup question: Is there a way to change the height of a textbox control / datetimepicker control? If I try to change the property setting to say 25 it defaults back to 20. Thanks again.

Jan Montano · Answer

Hi So far it's working for me. I click on the datetimepicker to change the value and the textbox's value changes. During debug does the program actually enters dateTimePicker1_ValueChanged() method? If not are you sure that you have an eventhandler declared for it like the code below? this.dateTimePicker1.ValueChanged += new System.EventHandler(this.dateTimePicker1_ValueChanged); BTW if you just need the textbox to change the display format of the datetimepicker you could just change the Format property of DateTimePicker to Short instead and drop the textbox.